Line data    Source code

       1             : #ifndef AMREX_PERIODICITY_H_
       2             : #define AMREX_PERIODICITY_H_
       3             : #include <AMReX_Config.H>
       4             : 
       5             : #include <AMReX_IntVect.H>
       6             : #include <AMReX_Box.H>
       7             : #include <vector>
       8             : 
       9             : namespace amrex {
      10             : 
      11             : /**
      12             : * \brief This provides length of period for periodic domains.  0 means it is
      13             : * not periodic in that direction.
      14             : * It is also assumed that the periodic domain starts with index 0.
      15             : */
      16             : class Periodicity
      17             : {
      18             : public:
      19             :     Periodicity () noexcept : period(AMREX_D_DECL(0,0,0)) {}
      20      869672 :     explicit Periodicity (const IntVect& v) noexcept : period(v) {}
      21             : 
      22           0 :     [[nodiscard]] bool isAnyPeriodic () const noexcept
      23           0 :         { return AMREX_D_TERM(period[0]>0, || period[1]>0, || period[2]>0); }
      24             :     [[nodiscard]] bool isAllPeriodic () const noexcept
      25             :         { return AMREX_D_TERM(period[0]>0, && period[1]>0, && period[2]>0); }
      26             :     [[nodiscard]] bool isPeriodic (int dir) const noexcept
      27             :         { return period[dir]>0; }
      28             : 
      29             :     bool operator==(const Periodicity& rhs) const noexcept
      30             :         { return period == rhs.period; }
      31             : 
      32             :     //! Cell-centered domain Box "infinitely" long in non-periodic directions.
      33             :     [[nodiscard]] Box Domain () const noexcept;
      34             : 
      35             :     [[nodiscard]] std::vector<IntVect> shiftIntVect () const;
      36             : 
      37             :     static const Periodicity& NonPeriodic () noexcept;
      38             : 
      39             : private:
      40             :     IntVect period;
      41             : };
      42             : 
      43             : }
      44             : 
      45             : #endif